Help/UGens/InOut/LocalBuf.html

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  28 <p class="p1"><span class="s1"><b>LocalBuf</b></span><span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span><b>allocate a buffer local to the synth</b></p>
  29 <p class="p2"><br></p>
  30 <p class="p1">superclass: UGen</p>
  31 <p class="p2"><br></p>
  32 <p class="p2"><br></p>
  33 <p class="p1"><span class="Apple-tab-span">     </span><b>*new(numFrames, numChannels)</b></p>
  34 <p class="p2"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b></p>
  35 <p class="p1"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>return a new buffer – the ugen outputs its buffer number and can thus be used in</p>
  36 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>any other ugen that requires a buffer number input.</p>
  37 <p class="p2"><span class="Apple-tab-span">     </span></p>
  38 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>numFrames<span class="Apple-tab-span">        </span><span class="Apple-tab-span">    </span></b>number of frames (default: 1)</p>
  39 <p class="p2"><span class="Apple-tab-span">     </span></p>
  40 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>numChannels</b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span>number of channels for multiple channel buffers (default: 1)</p>
  41 <p class="p2"><br></p>
  42 <p class="p2"><span class="Apple-tab-span">     </span></p>
  43 <p class="p1"><span class="Apple-tab-span">     </span><b>*newFrom(list)</b></p>
  44 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  45 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>return a new buffer from a given list of values. The list may be two-dimensional for numChannels &gt; 1.</p>
  46 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>It is then reshaped into the buffer's current format by flattening.</p>
  47 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  48 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>Since newFrom is called by the <b>as</b> message, one may thus convert an array to a LocalBuf:</p>
  49 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>[1, 2, 3].as(LocalBuf)</p>
  50 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  51 <p class="p1"><span class="Apple-tab-span">     </span><b>set(list, offset)</b><span class="Apple-tab-span">    </span></p>
  52 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>set the buffer slots with a list of values. If list is smaller than numFrames, it will only set</p>
  53 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>part of the buffer. The list may be two-dimensional for numChannels &gt; 1.</p>
  54 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><b>offset</b> is the starting index (default: 0)</p>
  55 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  56 <p class="p1"><span class="Apple-tab-span">     </span><b>clear</b><span class="Apple-tab-span">        </span><span class="Apple-tab-span">    </span>set the buffer slot to zero. This is <b>important</b> when randomly acessing buffer slots</p>
  57 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(e.g. with a BufRd) or not overwriting them. Clear is not an efficient real time operation</p>
  58 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>for larger buffers, so it should be only used when really needed - but then it is essential:</p>
  59 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a LocalBuf is "created" in each new synth, and it may reuse old space. So if an older<span class="Apple-converted-space"> </span></p>
  60 <p class="p1"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>synth has already ended, this part of memory may be the same as the new synth's.</p>
  61 <p class="p2"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  62 <p class="p2"><span class="Apple-tab-span">     </span></p>
  63 <p class="p1"><span class="Apple-tab-span">     </span>see also SetBuf, ClearBuf<span class="s2"><span class="Apple-tab-span">  </span></span></p>
  64 <p class="p3"><span class="Apple-tab-span">     </span></p>
  65 <p class="p3"><span class="Apple-tab-span">     </span></p>
  66 <p class="p4"><span class="Apple-tab-span">     </span></p>
  67 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// example: FFT</p>
  68 <p class="p3"><span class="Apple-tab-span">     </span></p>
  69 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
  70 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
  71 <p class="p6"><span class="Apple-tab-span">     </span><span class="s4">var</span> in, chain;</p>
  72 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>in = <span class="s4">WhiteNoise</span>.ar(0.1.dup);</p>
  73 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">FFT</span>({<span class="s4">LocalBuf</span>(2048, 1)}.dup, in);</p>
  74 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">PV_BrickWall</span>(chain, <span class="s4">SinOsc</span>.kr([0.1, 0.11]));<span class="Apple-converted-space"> </span></p>
  75 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span><span class="s4">IFFT</span><span class="s3">(chain) </span>// inverse FFT</p>
  76 <p class="p6"><span class="Apple-tab-span">     </span>}.play;</p>
  77 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
  78 <p class="p3"><span class="Apple-tab-span">     </span></p>
  79 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// spawn some FFT based synths:</p>
  80 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
  81 <p class="p7"><span class="s3"><span class="Apple-tab-span">    </span></span>SynthDef<span class="s3">(</span><span class="s5">\fftgrain</span><span class="s3">, { </span>|out, sustain = 1, rate = 0.2|</p>
  82 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> in, chain;</p>
  83 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>in = <span class="s4">WhiteNoise</span>.ar(0.1).dup;</p>
  84 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">FFT</span>({<span class="s4">LocalBuf</span>(128, 1)}.dup, in);</p>
  85 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">PV_BrickWall</span>(chain,<span class="Apple-converted-space"> </span></p>
  86 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s4">SinOsc</span>.kr(rate * <span class="s4">XLine</span>.kr(1, 15 * [1, 1.6], sustain), <span class="s4">Rand</span>(0, pi))</p>
  87 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>);<span class="Apple-converted-space"> </span></p>
  88 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Out</span>.ar(out, <span class="s4">IFFT</span>(chain) * <span class="s4">XLine</span>.kr(1, 0.001, sustain, doneAction: 2)) <span class="s6">// inverse FFT</span></p>
  89 <p class="p6"><span class="Apple-tab-span">     </span>}).add;</p>
  90 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
  91 <p class="p3"><span class="Apple-tab-span">     </span></p>
  92 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
  93 <p class="p7"><span class="s3"><span class="Apple-tab-span">    </span></span>Pbind<span class="s3">(</span></p>
  94 <p class="p8"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>\instrument<span class="s3">, </span>\fftgrain<span class="s3">,<span class="Apple-converted-space"> </span></span></p>
  95 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s5">\rate</span>, <span class="s4">Pwhite</span>().linexp(0, 1, 0.01, 300),<span class="Apple-converted-space"> </span></p>
  96 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s5">\legato</span>, <span class="s4">Pwhite</span>(1, 3.0, <span class="s4">inf</span>),</p>
  97 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s5">\dur</span>, <span class="s4">Prand</span>([0.2, 1, 1.2], <span class="s4">inf</span>)</p>
  98 <p class="p6"><span class="Apple-tab-span">     </span>).play</p>
  99 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 100 <p class="p3"><span class="Apple-tab-span">     </span></p>
 101 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// IndexL</p>
 102 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 103 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 104 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf = <span class="s4">LocalBuf</span>.newFrom((0..5).scramble);</p>
 105 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> freq = <span class="s4">IndexL</span>.kr(buf, <span class="s4">MouseX</span>.kr(0, <span class="s4">BufFrames</span>.kr(buf))).poll * 100 + 40;</p>
 106 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Saw</span>.ar(freq * [1, 1.1]) * 0.1</p>
 107 <p class="p6"><span class="Apple-tab-span">     </span>}.play;</p>
 108 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 109 <p class="p3"><br></p>
 110 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// DetectIndex</p>
 111 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 112 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 113 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf1 = <span class="s4">LocalBuf</span>.newFrom((0..5).scramble);</p>
 114 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf2 = <span class="s4">LocalBuf</span>.newFrom((0..5).scramble - 1);</p>
 115 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf3 = <span class="s4">LocalBuf</span>.newFrom((0..5).scramble + 1);</p>
 116 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> index = <span class="s4">DetectIndex</span>.kr([buf1, buf2], <span class="s4">SinOsc</span>.kr([0.85, 0.8], 0, 6).trunc).poll;</p>
 117 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> freq = <span class="s4">IndexL</span>.kr([buf2, buf3], index).poll * 40 + 40;</p>
 118 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Saw</span>.ar(freq) * 0.1</p>
 119 <p class="p6"><span class="Apple-tab-span">     </span>}.play;</p>
 120 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 121 <p class="p3"><br></p>
 122 <p class="p3"><span class="Apple-tab-span">     </span></p>
 123 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// DegreeToKey</p>
 124 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// modal space</p>
 125 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// mouse x controls discrete pitch in dorian mode</p>
 126 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 127 <p class="p6"><span class="Apple-tab-span">     </span>play({</p>
 128 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> mix;</p>
 129 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 130 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>mix =<span class="Apple-converted-space"> </span></p>
 131 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 132 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// lead tone</p>
 133 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">SinOsc</span>.ar(</p>
 134 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 135 <p class="p7"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>DegreeToKey<span class="s3">.kr(</span></p>
 136 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>[0, 2, 3.2, 5, 7, 9, 10].as(<span class="s4">LocalBuf</span>),</p>
 137 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span><span class="s4">MouseX</span><span class="s3">.kr(0, 15),<span class="Apple-tab-span">   </span><span class="Apple-tab-span">    </span></span>// mouse indexes into scale</p>
 138 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>12,<span class="Apple-tab-span"> </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// 12 notes per octave</p>
 139 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>1,<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s6">// mul = 1</span></p>
 140 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>72<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// offset by 72 notes</p>
 141 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>).poll</p>
 142 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>+ </span><span class="s4">LFNoise1</span><span class="s3">.kr([3,3], 0.04)<span class="Apple-tab-span">  </span></span>// add some low freq stereo detuning</p>
 143 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>).midicps,<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// convert midi notes to hertz</p>
 144 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0,</p>
 145 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0.1)</p>
 146 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
 147 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// drone 5ths</p>
 148 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>+ <span class="s4">RLPF</span>.ar(<span class="s4">LFPulse</span>.ar([48,55].midicps, 0.15),</p>
 149 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s4">SinOsc</span>.kr(0.1, 0, 10, 72).midicps, 0.1, 0.1);</p>
 150 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
 151 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// add some 70's euro-space-rock echo</p>
 152 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">CombN</span>.ar(mix, 0.31, 0.31, 2, 1, mix)</p>
 153 <p class="p6"><span class="Apple-tab-span">     </span>})</p>
 154 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 155 <p class="p3"><span class="Apple-tab-span">     </span></p>
 156 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// Osc</p>
 157 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 158 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 159 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf;</p>
 160 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> list = <span class="s4">Wavetable</span>.sineFill(512, 1.0 / [1, 10, 3, 10, 5, 6, 10]);</p>
 161 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// list.plot;</p>
 162 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>buf = <span class="s4">LocalBuf</span>.newFrom(list);</p>
 163 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Osc</span>.ar(buf,<span class="Apple-converted-space"> </span></p>
 164 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s4">XLine</span>.kr(2000, 200 + {30.0.rand}.dup, 10) + <span class="s4">SinOsc</span>.ar(<span class="s4">Line</span>.kr(2, 300, 10),<span class="Apple-converted-space"> </span></p>
 165 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0, 100)</p>
 166 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>) * 0.1;</p>
 167 <p class="p6"><span class="Apple-tab-span">     </span>}.play;</p>
 168 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 169 <p class="p3"><span class="Apple-tab-span">     </span></p>
 170 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// see how not clearing the buffer accesses old data:</p>
 171 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// slowly overwrite data with noise</p>
 172 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 173 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 174 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf = <span class="s4">LocalBuf</span>(2048, 2);</p>
 175 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">BufWr</span>.ar(<span class="s4">WhiteNoise</span>.ar(1.dup), buf, <span class="s4">LFNoise0</span>.ar(530).range(0, <span class="s4">BufFrames</span>.kr(buf)));<span class="Apple-converted-space"> </span></p>
 176 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">PlayBuf</span>.ar(2, buf, <span class="s4">MouseX</span>.kr(1, 2), loop: 1) * 0.1</p>
 177 <p class="p6"><span class="Apple-tab-span">     </span>}.play</p>
 178 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 179 <p class="p3"><span class="Apple-tab-span">     </span></p>
 180 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// avoid this (unless you like the glitch) by clearing buffer first:</p>
 181 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 182 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 183 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> buf = <span class="s4">LocalBuf</span>(2048, 2).clear;</p>
 184 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">BufWr</span>.ar(<span class="s4">WhiteNoise</span>.ar(1.dup), buf, <span class="s4">LFNoise0</span>.ar(530).range(0, <span class="s4">BufFrames</span>.kr(buf)));<span class="Apple-converted-space"> </span></p>
 185 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">PlayBuf</span>.ar(2, buf, <span class="s4">MouseX</span>.kr(1, 2), loop: 1) * 0.1</p>
 186 <p class="p6"><span class="Apple-tab-span">     </span>}.play</p>
 187 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 188 <p class="p3"><br></p>
 189 <p class="p3"><span class="Apple-tab-span">     </span></p>
 190 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// BufCombC stereo (needs no clearing, because delay is filled by ugen)</p>
 191 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 192 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 193 <p class="p6"><span class="Apple-tab-span">     </span><span class="s4">var</span> z = <span class="s4">Decay</span>.ar(<span class="s4">Dust</span>.ar(1.dup, 0.1), 0.3, <span class="s4">WhiteNoise</span>.ar);</p>
 194 <p class="p6"><span class="Apple-tab-span">     </span><span class="s4">BufCombC</span>.ar(<span class="s4">LocalBuf</span>(<span class="s4">SampleRate</span>.ir, 2), z, <span class="s4">XLine</span>.kr(0.0001, 0.01, 20), 0.2);<span class="Apple-converted-space"> </span></p>
 195 <p class="p6"><span class="Apple-tab-span">     </span>}.play</p>
 196 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 197 <p class="p3"><span class="Apple-tab-span">     </span></p>
 198 <p class="p5"><span class="s3"><span class="Apple-tab-span">    </span></span>// multichannel test</p>
 199 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
 200 <p class="p6"><span class="Apple-tab-span">     </span>{</p>
 201 <p class="p6"><span class="Apple-tab-span">     </span><span class="s4">var</span> in, chain, n = 4;</p>
 202 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>in = <span class="s4">WhiteNoise</span>.ar(0.1.dup(n));</p>
 203 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">FFT</span>({<span class="s4">LocalBuf</span>(2048, 1)}.dup(n), in);</p>
 204 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>chain = <span class="s4">PV_BrickWall</span>(chain, <span class="s4">LFNoise2</span>.kr(2.dup(n)));<span class="Apple-converted-space"> </span></p>
 205 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Splay</span>.ar(<span class="s4">IFFT</span>(chain)) <span class="s6">// inverse FFT</span></p>
 206 <p class="p6"><span class="Apple-tab-span">     </span>}.play;</p>
 207 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
 208 </body>
 209 </html>